import java.util.ArrayList;
import java.util.List;

public class Test {
    public static void main(String[] args) {
        List<Integer>s1=new ArrayList<>();
        int [] arr=new int[]{4,1,2,3};
        for (int i = 0; i < arr.length ; i++) {
            s1.add(arr[i]);
        }
        System.out.println("aaa");
    }
}
